【判断题】【消耗次数:1】
空气中地实际水汽压与饱和水汽压之比称为相对湿度。相对湿度也是一项表示大气湿度地指标
正确
错误
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相关题目
【判断题】 空气中地实际水汽压与饱和水汽压之比称为相对湿度.相对湿度也是一项表示大气湿度地指标().
①  正确
②  错误
【多选题】 饱和水汽压的变化是()。
①  随温度升降的改变量,在高温时比低温时大些
②  随大气中水汽的增加而迅速增大
③  随着温度的升高而迅速增大
④  可表示空气中水汽含量距饱和的程度
⑤  可表示空气中水汽的含量
【单选题】 当相对湿度为100%时,则()。
①  气温高于露点,饱和差=0;
②  气温=露点,饱和差大于零;
③  气温=露点,饱和差=0;
④  气温低于露点,饱和差小于零。
【单选题】 绝对湿度是300克每立方米,饱和湿度是400克每立方米,相对湿度是( )
①  0.75
②  0.34
③  0.7
④  0.69
【判断题】 空气参数中四度指空气的温度、相对湿度、压力、环境噪声
①  正确
②  错误
【单选题】 发酵法的相对湿度应控制在
①  40%—50%
②  50%—60%
③  60%—70%
④  70%—80%
⑤  80%—90%
【单选题】 药物发酵的相对湿度应控制在
①  80%~90%
②  30%~40%
③  40%~50%
④  50%~60%
⑤  70%~80%
【单选题】 通风工程室内空气的主要计算参数有: 相对湿度 、 ()、 空气流速 。
①  洁净度
②  允许噪声
③  温度
【判断题】 空气参数中的“四度”指的是空气的温度、相对湿度、空气流速、洁净度。
①  正确
②  错误
【判断题】 如果空气相对湿度为100%,水面上就不会有蒸发。
①  正确
②  错误
随机题目
【单选题】 30.This house will probably come on the ____next month.
①  fair
②  market
③  shop
④  store
【单选题】 29.____me most was that the young boy who had lost both arms in an accident could handle a pen with his feet. 
①  That amazed
②  It amazed
③  Which amazed
④  What amazed
【单选题】 26. Which of the following is INCORRECT?
①  Another two girls
②  Few words
③  This work
④  A bit of flowers
【单选题】 2.Should any critical issue _______ the negotiation with foreign company, immediately report to the manager for advice.
①  arise from
②  interact
③  ensure
④  . make
【单选题】 3.It is impossible for a man like him to bear the ______ of being suspected as a thief.
①  fame
②  stigma
③  reputation
④  mark
【单选题】 7.Children learn how to______ with others by playing with their friends.
①  interact
②  talk
③  involve
④  . absorb
【单选题】 27.The city council is planning a huge road-building programme to ease congestion. The underlined part means _____.
①  calm
②  relieve
③  comfort
④  still
【单选题】 10.Mother advised him that Tom is not a good guy to ______.
①  associate with
②  care about
③  touch
④  be concerned with
【单选题】 18.He told me he saw it , but _____fact he wasn’t really there.
①  in point of
②  at point of
③  about point of
④  from point of
【单选题】 21.Sex education in primary school is still a big _____ in China today.
①  question
②  issue
③  problem
④  event